//************************************************************************
//	PP2_7.java 		Author:GK
//	
//	Show the time you need to travel.
//************************************************************************

import java.util.Scanner;

public class PP2_7
{
	public static void main(String[] args)
	{
	int v,s;
	double t;
	Scanner scan = new Scanner(System.in);

	System.out.println("请输入旅行速度和距离：");
	v = scan.nextInt();
	s = scan.nextInt();
	
	t = (double) s / v;
	System.out.println("旅行所需要的时间：" + t);
	}
}
